Research on voltage sensitivity of vibration accelerometer based on cymbal transducer

摘要

The cymbal piezocomposite transducer was used as the sensitive element of a new type of vibration accelerometer. In this paper voltage sensitivity, S v, of the accelerometer was researched. Voltage sensitivity, S v, as a function of operation frequency, f, and voltage sensitivity as a function of preinstalled mass, M, was analyzed. The dimensions of cymbal transducer effecting on voltage sensitivity were also discussed. The experimental results are shown that the voltage sensitivity of this new kind of accelerometer is more 30 times than that of conventional piezoelectric vibration accelerometer which sensitive element is PZT-5A disk.